Clasp-envelop



C. P. KLEEBAUER.

CLASP ENVELOP.

APPLICATION FILED AUG-8| 1917 RENEWED OCT. 14, 192.0;

1,382,427, Patented June 21, 1921.

, P26 a za 7291 "34 i i l 6L M W 5P 29 -a! will m mm CP/fa'eeziazaer ATTORNEYS UNITED STATES PATENT oFFIc CHARLES-1?. KLEEfiAUER; or BnooKLYn, 1\T n w YORKyASSIGNOR T0 coHoEs ENVELOPE ooi; rim, or: COHOES, NEW YORK, :11 CORPORATION on NEW 1 YORK;

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resented Jiine 1921.

Application filed August S, 1917, Serial No. 185,051. Renewed October 14, 1920. Serial No. 417,018.

To all whom it may concern:

Be it known that I, CHARLES P. KLEE- BAUER, a citizen of the United States, and a resident of the city of New York, borough of Brooklyn, in the county of Kings and State of New York, have invented a new and Improved Clasp-Envelop, of which the following is a full, clear, and exact description.

Among the principal objects which the present invention has in view are 5 to provide an attachment for locking the closure flap of an envelop; to provide a clasp for an envelop constructed from material similar to the body thereof and arranged to increase the resistance to any releasing movement in proportion as the movement is increased.

Drawings.

Figure 1 is a side view of an envelop constructed and arranged in accordance with the present invention, the closure flap being shown in open position;

Fig. 2 is a similar view, the closure flap being shown in closed position;

Fig. 3 is a view of a blank from which the hereindisclosed envelop is constructed, said blank being shown in conjunction with and as united to otherblanks formed simultaneously therewith, said blank being provided with reinforcing patches forming locking clasp attachments;

Fig. 4 is a detail view showing the blanks from which the reinforcing clasps are formed, said blanks being disclosed as a continuous strip.

Description.

As seen best in Fig. 3 of the drawings, envolops when constructed in accordance with the present invention, have a body portion 21, a back portion 22, closure seams 23, and a closure flap 2 1, all forming integral portions of a continuous strip cut to form the side seams 23, but not severed on the lines 25, nor folded on the lines 26 and 27, such operations being preliminary to the formation of the completed envelop, such as shown in Figs. 1 and 2 of the drawings.

Prior to severing the strip shown in Fig. 3 0n the lines 25, reinforcing patches 28 of relatively stout material are adhered to the strip, being disposed across the lines 25, as seen best in Fig. 3 of the drawings. Prior to severing the strip and the patches adhered thereto, said patches are punched to form the slots 29 and 30 therein.

As seen best in Fig. 4 of the drawings, the patches 28 are formed in a continuous strip, which, at suitable intervals, has portions cut away to form tongues 31. When the patches are severed one from another, the body portions thereof are securely adhered to the envelops. The tongues are left free to be extended through the slots 29 and 30.

When the envelops are severed from the strips in which they are originally formed and when the back portion 22 is disposed on the body portion 21, itwill be found that the slot 29 registers with the slot 30, so that when the tongue 31 is inserted through the said slots 29 and 30, it will extend through both sections of the patches. The tongue 31 is first extended through the slot 29 and is then returned and extended through the slots 29 and 30, the end of said tongue passing into the body 21 of the envelop. This is the condition of the parts as shown in Fig. 2 of the drawings.

It is as will be observed that when the tongue 31 is laced through the slots 29 and 30 in the manner described, the folded flap 24 is securely fastened in service.

1. The combination of an envelop having back, body, and flap portions, said flap portion covering the opening in said envelop when overlaid thereon, a plurality of reinforcing patches, one of said patches being adhered to said flap portion and one to said back portion, said patches and the parts structurally connected therewith having elongated slots adapted to register when the flap is moved to its closure position, the patch attached to said flap being further provided with a second slot, and a tongue integrally connected with the patch having the single slot, said tongue being adapted for extension through all of said slots to form a closure-locking member.

2. The combination of an envelop having back, body and flap portions, said flap portion covering the opening in said envelop when overlaid thereon, a plurality of reinforcing patches, one of said patches being adhered to said flap portion and one to said back portion, said patches and the parts structurally connected therewith having elongated slots adapted to register when the flap is moved to its closure position the patch attached to said flap being further provided with a second slot, said second slot being adapted to register with the base of slots in both patches.

a tongue integrally connected with and'extended from the patch attached to said back portion, and a tongue integrally connected with a patch attached to "said back portion, 10

said tongue being adapted for insertion through the second-mentioned slot on the patch attached to the fia and for a sub sequent insertion throug the registered i CHARLES P. KYLEEBAUEB. 

